Allowance for Credit Losses - Changes in the Allowance for Credit Losses (Parenthetical) (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023	Jan. 01, 2023	Dec. 31, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Reserve for credit losses				$ 28,511
Allowance for credit losses	$ 39,669	$ 37,160		28,511	$ 26,641
ASU 2016-13 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Reserve for credit losses			$ 37,861
Allowance for credit losses				$ 897
ASU 2016-13 [Member] | PCD Loans [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Reserve for credit losses			1,668
Allowance for credit losses		1,668	$ 1,668
Loans and leases receivable allowance net of change in estimates		$ 771